These photos are successful because you can see the main focus of each photo.
(Direct and diffused lighting)
These pictures are successful because it looks like the organisms are smaller than they actually are.
(Direct and Diffused lighting)
Rule of Thirds and Freeze Actions
This picture is successful because you can see him skating past as freeze action.
Freeze Action and Direct Lighting
This photo is successful because you can clearly see she is spinning because of the direct lighting
This simplicity and direct lighting. These pictures are successful because there clear and the object in the middle is the main focus and you can tell thats what they want you to look at.
These are force perspective and diffused lighting.
Combination of 2 compositional guidelines
Simplicity and Freeze Action
Diffused lighting and Freeze Action
These photos are framing because the people are in the middle of the shape thats framing them.
The quality of light for the first one is direct. The quality of light for the second photo is also direct.
These photos are an example of line because there are lines in one or more directions clearly in this picture.
The quality of light for the first photo is unknown because the picture is black and white. The second photos light quality is defused because there are shadows and the light is not directly on the steps.